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Cache::Null - Null implementation of the Cache interface


  use Cache::Null;

  my $cache = Cache::Null->new();

See Cache for the usage synopsis.


The Cache::Null class implements the Cache interface, but does not actually persist data. This is useful when developing and debugging a system and you wish to easily turn off caching. As a result, all calls return results indicating that there is no data stored.


  my $cache = Cache::Null->new( %options )

The constructor takes cache properties as named arguments, for example:

  my $cache = Cache::Null->new( default_expires => '600 sec' );

See 'PROPERTIES' below and in the Cache documentation for a list of all available properties that can be set. However it should be noted that all the existing properties, such as default_expires, have no effect in a Null cache.


See 'Cache' for the API documentation.




 Chris Leishman <>
 Based on work by DeWitt Clinton <>


 Copyright (C) 2003-2006 Chris Leishman.  All Rights Reserved.

This module is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either expressed or implied. This program is free software; you can redistribute or modify it under the same terms as Perl itself.

$Id:,v 1.4 2006/01/31 15:23:58 caleishm Exp $